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DOI:
计算机系统应用英文版:2012,21(6):121-125
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基于Arnold变换和Lorenz混沌系统的彩色水印图像加密算法
(宝鸡职业技术学院 电子信息工程系,宝鸡 721008)
Encryption Algorithm of Colored Watermark Image Based on Arnold Transform and Lorenz Chaos System
(Electronic Information Engineering Dep, Baoji Professional Technology Institute, Baoji 721008, China)
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Received:October 05, 2011    Revised:November 18, 2011
中文摘要: 该算法利用Arnold 变换以及彩色图像的置乱度定义,求解Lorenz 混沌系统的动力学方程,得到三个混沌序列;然后对Arnold 置乱后的每个颜色分量进行置乱处理。仿真实验结果表明,该算法克服了Arnold 变换和Lorenz 混沌系统的缺点,能够抵抗多种攻击,使彩色水印图像具有较高的安全性。
中文关键词: Arnold 变换  Lorenz 混沌系统  算法
Abstract:This algorithm uses the Arnold transformation and the color image scrambling definition, to solve the Lorenz chaos system's dynamic equation, to obtain three chaos sequences. Then it carries on scrambling processing after Arnold scrambling's each color component. The simulation experiment result indicated that this algorithm has overcome the Arnold transformation and the Lorenz chaos system's shortcoming, can resist many kinds of attacks, enables the high security of the colored watermark image.
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王丽丽.基于Arnold变换和Lorenz混沌系统的彩色水印图像加密算法.计算机系统应用,2012,21(6):121-125
WANG Li-Li.Encryption Algorithm of Colored Watermark Image Based on Arnold Transform and Lorenz Chaos System.COMPUTER SYSTEMS APPLICATIONS,2012,21(6):121-125